I'm trying to take 12 digital signals and convert them to a linear analog signal (0-10 V or 0-20 mA). In an ideal world each digital signal would increase the analog output by 0.83 V and it wouldn't matter what order the digital inputs are on. So if I had bit 0 and 11 on I would get 1.66 V or if bit 3 and 4 are on I would get the same.
Is this possible with a DAC or R2R ladder?
Thanks